not many symptoms

Please tell me if I'm over analysing everything but I had a miscarriage with my first pregnancy and now that I'm pregnant again I'm studying everything always. I'm 6 weeks 3 days and apart from sore boobs I feel great! Is this normal? I know not everyone gets symptoms and it's still early but I feel really good and I'm worried that I'm not even pregnant even though when I first thought I might be i did 3 tests and they are all positive. I'm so tempted to do more tests like a maniac but im resisting the urge and trying to be patient, all I hear of is how early pregnancy is awful and you feel rubbish so now I'm worrying, any advice?? xx